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Tue Jul 30 09:21:36 2002

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.tr \(*W-|\(bv\*(Tr . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' 'br\}
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Title "ERR_get_error 3" C ERR_get_error, ERR_peek_error, ERR_get_error_line, ERR_peek_error_line, ERR_get_error_line_data, ERR_peek_error_line_data - obtain error code and data Header "SYNOPSIS" .Vb 1 #include <openssl/err.h> .Ve .Vb 2 unsigned long ERR_get_error(void); unsigned long ERR_peek_error(void); .Ve .Vb 2 unsigned long ERR_get_error_line(const char **file, int *line); unsigned long ERR_peek_error_line(const char **file, int *line); .Ve .Vb 4 unsigned long ERR_get_error_line_data(const char **file, int *line, const char **data, int *flags); unsigned long ERR_peek_error_line_data(const char **file, int *line, const char **data, int *flags); .Ve Header "DESCRIPTION" \fIERR_get_error() returns the last error code from the thread's error queue and removes the entry. This function can be called repeatedly until there are no more error codes to return.

\fIERR_peek_error() returns the last error code from the thread's error queue without modifying it.

See ERR_GET_LIB(3) for obtaining information about location and reason of the error, and ERR_error_string(3) for human-readable error messages.

\fIERR_get_error_line() and ERR_peek_error_line() are the same as the above, but they additionally store the file name and line number where the error occurred in *file and *line, unless these are \s-1NULL\s0.

\fIERR_get_error_line_data() and ERR_peek_error_line_data() store additional data and flags associated with the error code in *data and *flags, unless these are \s-1NULL\s0. *data contains a string if *flags&\s-1ERR_TXT_STRING\s0. If it has been allocated by OPENSSL_malloc(), *flags&\s-1ERR_TXT_MALLOCED\s0 is true.

Header "RETURN VALUES" The error code, or 0 if there is no error in the queue. Header "SEE ALSO" err(3), ERR_error_string(3), ERR_GET_LIB(3) Header "HISTORY" \fIERR_get_error(), ERR_peek_error(), ERR_get_error_line() and \fIERR_peek_error_line() are available in all versions of SSLeay and OpenSSL. ERR_get_error_line_data() and ERR_peek_error_line_data() were added in SSLeay 0.9.0.